struct decoder_sys_t
{
- bs_t bs;
+ bsw_t bs;
/* Decoder internal data */
int i_id;
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-static void decode_segment( decoder_t *, bs_t * );
-static void decode_page_composition( decoder_t *, bs_t * );
-static void decode_region_composition( decoder_t *, bs_t * );
-static void decode_object( decoder_t *, bs_t * );
-static void decode_display_definition( decoder_t *, bs_t * );
-static void decode_clut( decoder_t *, bs_t * );
+static void decode_segment( decoder_t *, bsw_t * );
+static void decode_page_composition( decoder_t *, bsw_t * );
+static void decode_region_composition( decoder_t *, bsw_t * );
+static void decode_object( decoder_t *, bsw_t * );
+static void decode_display_definition( decoder_t *, bsw_t * );
+static void decode_clut( decoder_t *, bsw_t * );
static void free_all( decoder_t * );
static void default_clut_init( decoder_t * );
return NULL;
}
- bs_init( &p_sys->bs, p_block->p_buffer, p_block->i_buffer );
+ bsw_init_writable( &p_sys->bs, p_block->p_buffer, p_block->i_buffer );
- if( bs_read( &p_sys->bs, 8 ) != 0x20 ) /* Data identifier */
+ if( bsw_read( &p_sys->bs, 8 ) != 0x20 ) /* Data identifier */
{
msg_Dbg( p_dec, "invalid data identifier" );
block_Release( p_block );
return NULL;
}
- if( bs_read( &p_sys->bs, 8 ) ) /* Subtitle stream id */
+ if( bsw_read( &p_sys->bs, 8 ) ) /* Subtitle stream id */
{
msg_Dbg( p_dec, "invalid subtitle stream id" );
block_Release( p_block );
#endif
p_sys->b_page = false;
- while( bs_show( &p_sys->bs, 8 ) == 0x0f ) /* Sync byte */
+ while( bsw_show( &p_sys->bs, 8 ) == 0x0f ) /* Sync byte */
{
decode_segment( p_dec, &p_sys->bs );
}
- if( bs_read( &p_sys->bs, 8 ) != 0xff ) /* End marker */
+ if( bsw_read( &p_sys->bs, 8 ) != 0xff ) /* End marker */
{
msg_Warn( p_dec, "end marker not found (corrupted subtitle ?)" );
block_Release( p_block );
memset( p_sys->default_clut.c_8b, 0xFF, 256 * sizeof(dvbsub_color_t) );
}
-static void decode_segment( decoder_t *p_dec, bs_t *s )
+static void decode_segment( decoder_t *p_dec, bsw_t *s )
{
decoder_sys_t *p_sys = p_dec->p_sys;
int i_type;
int i_size;
/* sync_byte (already checked) */
- bs_skip( s, 8 );
+ bsw_skip( s, 8 );
/* segment type */
- i_type = bs_read( s, 8 );
+ i_type = bsw_read( s, 8 );
/* page id */
- i_page_id = bs_read( s, 16 );
+ i_page_id = bsw_read( s, 16 );
/* segment size */
- i_size = bs_show( s, 16 );
+ i_size = bsw_show( s, 16 );
if( ( i_page_id != p_sys->i_id ) &&
( i_page_id != p_sys->i_ancillary_id ) )
msg_Dbg( p_dec, "subtitle skipped (page id: %i, %i)",
i_page_id, p_sys->i_id );
#endif
- bs_skip( s, 8 * ( 2 + i_size ) );
+ bsw_skip( s, 8 * ( 2 + i_size ) );
return;
}
#ifdef DEBUG_DVBSUB
msg_Dbg( p_dec, "skipped invalid ancillary subtitle packet" );
#endif
- bs_skip( s, 8 * ( 2 + i_size ) );
+ bsw_skip( s, 8 * ( 2 + i_size ) );
return;
}
#ifdef DEBUG_DVBSUB
msg_Dbg( p_dec, "end of display" );
#endif
- bs_skip( s, 8 * ( 2 + i_size ) );
+ bsw_skip( s, 8 * ( 2 + i_size ) );
break;
case DVBSUB_ST_STUFFING:
#ifdef DEBUG_DVBSUB
msg_Dbg( p_dec, "skip stuffing" );
#endif
- bs_skip( s, 8 * ( 2 + i_size ) );
+ bsw_skip( s, 8 * ( 2 + i_size ) );
break;
default:
msg_Warn( p_dec, "unsupported segment type: (%04x)", i_type );
- bs_skip( s, 8 * ( 2 + i_size ) );
+ bsw_skip( s, 8 * ( 2 + i_size ) );
break;
}
}
-static void decode_clut( decoder_t *p_dec, bs_t *s )
+static void decode_clut( decoder_t *p_dec, bsw_t *s )
{
decoder_sys_t *p_sys = p_dec->p_sys;
uint16_t i_segment_length;
dvbsub_clut_t *p_clut, *p_next;
int i_id, i_version;
- i_segment_length = bs_read( s, 16 );
- i_id = bs_read( s, 8 );
- i_version = bs_read( s, 4 );
+ i_segment_length = bsw_read( s, 16 );
+ i_id = bsw_read( s, 8 );
+ i_version = bsw_read( s, 4 );
/* Check if we already have this clut */
for( p_clut = p_sys->p_cluts; p_clut != NULL; p_clut = p_clut->p_next )
if( p_clut && ( p_clut->i_version == i_version ) )
{
/* Nothing to do */
- bs_skip( s, 8 * i_segment_length - 12 );
+ bsw_skip( s, 8 * i_segment_length - 12 );
return;
}
/* We don't have this version of the CLUT: Parse it */
p_clut->i_version = i_version;
p_clut->i_id = i_id;
- bs_skip( s, 4 ); /* Reserved bits */
+ bsw_skip( s, 4 ); /* Reserved bits */
i_processed_length = 2;
while( i_processed_length < i_segment_length )
{
uint8_t i_id;
uint8_t i_type;
- i_id = bs_read( s, 8 );
- i_type = bs_read( s, 3 );
+ i_id = bsw_read( s, 8 );
+ i_type = bsw_read( s, 3 );
- bs_skip( s, 4 );
+ bsw_skip( s, 4 );
- if( bs_read( s, 1 ) )
+ if( bsw_read( s, 1 ) )
{
- y = bs_read( s, 8 );
- cr = bs_read( s, 8 );
- cb = bs_read( s, 8 );
- t = bs_read( s, 8 );
+ y = bsw_read( s, 8 );
+ cr = bsw_read( s, 8 );
+ cb = bsw_read( s, 8 );
+ t = bsw_read( s, 8 );
i_processed_length += 6;
}
else
{
- y = bs_read( s, 6 ) << 2;
- cr = bs_read( s, 4 ) << 4;
- cb = bs_read( s, 4 ) << 4;
- t = bs_read( s, 2 ) << 6;
+ y = bsw_read( s, 6 ) << 2;
+ cr = bsw_read( s, 4 ) << 4;
+ cb = bsw_read( s, 4 ) << 4;
+ t = bsw_read( s, 2 ) << 6;
i_processed_length += 4;
}
}
}
-static void decode_page_composition( decoder_t *p_dec, bs_t *s )
+static void decode_page_composition( decoder_t *p_dec, bsw_t *s )
{
decoder_sys_t *p_sys = p_dec->p_sys;
int i_version, i_state, i_segment_length, i_timeout, i;
/* A page is composed by 0 or more region */
- i_segment_length = bs_read( s, 16 );
- i_timeout = bs_read( s, 8 );
- i_version = bs_read( s, 4 );
- i_state = bs_read( s, 2 );
- bs_skip( s, 2 ); /* Reserved */
+ i_segment_length = bsw_read( s, 16 );
+ i_timeout = bsw_read( s, 8 );
+ i_version = bsw_read( s, 4 );
+ i_state = bsw_read( s, 2 );
+ bsw_skip( s, 2 ); /* Reserved */
if( i_state == DVBSUB_PCS_STATE_CHANGE )
{
#if 0
/* Try to start decoding even without an acquisition page */
- bs_skip( s, 8 * (i_segment_length - 2) );
+ bsw_skip( s, 8 * (i_segment_length - 2) );
return;
#endif
}
/* Check version number */
if( p_sys->p_page && ( p_sys->p_page->i_version == i_version ) )
{
- bs_skip( s, 8 * (i_segment_length - 2) );
+ bsw_skip( s, 8 * (i_segment_length - 2) );
return;
}
else if( p_sys->p_page )
{
for( i = 0; i < p_sys->p_page->i_region_defs; i++ )
{
- p_sys->p_page->p_region_defs[i].i_id = bs_read( s, 8 );
- bs_skip( s, 8 ); /* Reserved */
- p_sys->p_page->p_region_defs[i].i_x = bs_read( s, 16 );
- p_sys->p_page->p_region_defs[i].i_y = bs_read( s, 16 );
+ p_sys->p_page->p_region_defs[i].i_id = bsw_read( s, 8 );
+ bsw_skip( s, 8 ); /* Reserved */
+ p_sys->p_page->p_region_defs[i].i_x = bsw_read( s, 16 );
+ p_sys->p_page->p_region_defs[i].i_y = bsw_read( s, 16 );
#ifdef DEBUG_DVBSUB
msg_Dbg( p_dec, "page_composition, region %i (%i,%i)",
}
}
-static void decode_region_composition( decoder_t *p_dec, bs_t *s )
+static void decode_region_composition( decoder_t *p_dec, bsw_t *s )
{
decoder_sys_t *p_sys = p_dec->p_sys;
dvbsub_region_t *p_region, **pp_region = &p_sys->p_regions;
int i_8_bg, i_4_bg, i_2_bg;
bool b_fill;
- i_segment_length = bs_read( s, 16 );
- i_id = bs_read( s, 8 );
- i_version = bs_read( s, 4 );
+ i_segment_length = bsw_read( s, 16 );
+ i_id = bsw_read( s, 8 );
+ i_version = bsw_read( s, 4 );
/* Check if we already have this region */
for( p_region = p_sys->p_regions; p_region != NULL;
/* Check version number */
if( p_region && ( p_region->i_version == i_version ) )
{
- bs_skip( s, 8 * (i_segment_length - 1) - 4 );
+ bsw_skip( s, 8 * (i_segment_length - 1) - 4 );
return;
}
/* Region attributes */
p_region->i_id = i_id;
p_region->i_version = i_version;
- b_fill = bs_read( s, 1 );
- bs_skip( s, 3 ); /* Reserved */
+ b_fill = bsw_read( s, 1 );
+ bsw_skip( s, 3 ); /* Reserved */
- i_width = bs_read( s, 16 );
- i_height = bs_read( s, 16 );
+ i_width = bsw_read( s, 16 );
+ i_height = bsw_read( s, 16 );
#ifdef DEBUG_DVBSUB
msg_Dbg( p_dec, " width=%d height=%d", i_width, i_height );
#endif
- i_level_comp = bs_read( s, 3 );
- i_depth = bs_read( s, 3 );
- bs_skip( s, 2 ); /* Reserved */
- i_clut = bs_read( s, 8 );
+ i_level_comp = bsw_read( s, 3 );
+ i_depth = bsw_read( s, 3 );
+ bsw_skip( s, 2 ); /* Reserved */
+ i_clut = bsw_read( s, 8 );
- i_8_bg = bs_read( s, 8 );
- i_4_bg = bs_read( s, 4 );
- i_2_bg = bs_read( s, 2 );
- bs_skip( s, 2 ); /* Reserved */
+ i_8_bg = bsw_read( s, 8 );
+ i_4_bg = bsw_read( s, 4 );
+ i_2_bg = bsw_read( s, 2 );
+ bsw_skip( s, 2 ); /* Reserved */
/* Free old object defs */
while( p_region->i_object_defs )
/* We parse object properties */
p_obj = &p_region->p_object_defs[p_region->i_object_defs - 1];
- p_obj->i_id = bs_read( s, 16 );
- p_obj->i_type = bs_read( s, 2 );
- bs_skip( s, 2 ); /* Provider */
- p_obj->i_x = bs_read( s, 12 );
- bs_skip( s, 4 ); /* Reserved */
- p_obj->i_y = bs_read( s, 12 );
+ p_obj->i_id = bsw_read( s, 16 );
+ p_obj->i_type = bsw_read( s, 2 );
+ bsw_skip( s, 2 ); /* Provider */
+ p_obj->i_x = bsw_read( s, 12 );
+ bsw_skip( s, 4 ); /* Reserved */
+ p_obj->i_y = bsw_read( s, 12 );
p_obj->psz_text = NULL;
i_processed_length += 6;
if( ( p_obj->i_type == DVBSUB_OT_BASIC_CHAR ) ||
( p_obj->i_type == DVBSUB_OT_COMPOSITE_STRING ) )
{
- p_obj->i_fg_pc = bs_read( s, 8 );
- p_obj->i_bg_pc = bs_read( s, 8 );
+ p_obj->i_fg_pc = bsw_read( s, 8 );
+ p_obj->i_bg_pc = bsw_read( s, 8 );
i_processed_length += 2;
}
}
}
/* ETSI 300 743 [7.2.1] */
-static void decode_display_definition( decoder_t *p_dec, bs_t *s )
+static void decode_display_definition( decoder_t *p_dec, bsw_t *s )
{
decoder_sys_t *p_sys = p_dec->p_sys;
uint16_t i_segment_length;
dvbsub_display_t *p_old = p_sys->p_display;
int i_version;
- i_segment_length = bs_read( s, 16 );
- i_version = bs_read( s, 4 );
+ i_segment_length = bsw_read( s, 16 );
+ i_version = bsw_read( s, 4 );
/* Check version number */
if( p_old && ( p_old->i_version == i_version ) )
{
/* The definition did not change */
- bs_skip( s, 8*i_segment_length - 4 );
+ bsw_skip( s, 8*i_segment_length - 4 );
return;
}
{
/* We don't have this version of the display definition: Parse it */
p_display->i_version = i_version;
- p_display->b_windowed = bs_read( s, 1 );
- bs_skip( s, 3 ); /* Reserved bits */
- p_display->i_width = bs_read( s, 16 )+1;
- p_display->i_height = bs_read( s, 16 )+1;
+ p_display->b_windowed = bsw_read( s, 1 );
+ bsw_skip( s, 3 ); /* Reserved bits */
+ p_display->i_width = bsw_read( s, 16 )+1;
+ p_display->i_height = bsw_read( s, 16 )+1;
if( p_display->b_windowed )
{
msg_Dbg( p_dec, "display definition with offsets (windowed)" );
#endif
/* Coordinates are measured from the top left corner */
- p_display->i_x = bs_read( s, 16 );
- p_display->i_max_x = bs_read( s, 16 );
- p_display->i_y = bs_read( s, 16 );
- p_display->i_max_y = bs_read( s, 16 );
+ p_display->i_x = bsw_read( s, 16 );
+ p_display->i_max_x = bsw_read( s, 16 );
+ p_display->i_y = bsw_read( s, 16 );
+ p_display->i_max_y = bsw_read( s, 16 );
i_processed_length += 64;
}
}
static void dvbsub_render_pdata( decoder_t *, dvbsub_region_t *, int, int,
uint8_t *, int );
-static void dvbsub_pdata2bpp( bs_t *, uint8_t *, int, int * );
-static void dvbsub_pdata4bpp( bs_t *, uint8_t *, int, int * );
-static void dvbsub_pdata8bpp( bs_t *, uint8_t *, int, int * );
+static void dvbsub_pdata2bpp( bsw_t *, uint8_t *, int, int * );
+static void dvbsub_pdata4bpp( bsw_t *, uint8_t *, int, int * );
+static void dvbsub_pdata8bpp( bsw_t *, uint8_t *, int, int * );
-static void decode_object( decoder_t *p_dec, bs_t *s )
+static void decode_object( decoder_t *p_dec, bsw_t *s )
{
decoder_sys_t *p_sys = p_dec->p_sys;
dvbsub_region_t *p_region;
/* ETSI 300-743 paragraph 7.2.4
* sync_byte, segment_type and page_id have already been processed.
*/
- i_segment_length = bs_read( s, 16 );
- i_id = bs_read( s, 16 );
- i_version = bs_read( s, 4 );
- i_coding_method = bs_read( s, 2 );
+ i_segment_length = bsw_read( s, 16 );
+ i_id = bsw_read( s, 16 );
+ i_version = bsw_read( s, 4 );
+ i_coding_method = bsw_read( s, 2 );
if( i_coding_method > 1 )
{
msg_Dbg( p_dec, "unknown DVB subtitling coding %d is not handled!", i_coding_method );
- bs_skip( s, 8 * (i_segment_length - 2) - 6 );
+ bsw_skip( s, 8 * (i_segment_length - 2) - 6 );
return;
}
}
if( !p_region )
{
- bs_skip( s, 8 * (i_segment_length - 2) - 6 );
+ bsw_skip( s, 8 * (i_segment_length - 2) - 6 );
return;
}
msg_Dbg( p_dec, "new object: %i", i_id );
#endif
- b_non_modify_color = bs_read( s, 1 );
- bs_skip( s, 1 ); /* Reserved */
+ b_non_modify_color = bsw_read( s, 1 );
+ bsw_skip( s, 1 ); /* Reserved */
if( i_coding_method == 0x00 )
{
int i_topfield, i_bottomfield;
uint8_t *p_topfield, *p_bottomfield;
- i_topfield = bs_read( s, 16 );
- i_bottomfield = bs_read( s, 16 );
- p_topfield = s->p_start + bs_pos( s ) / 8;
+ i_topfield = bsw_read( s, 16 );
+ i_bottomfield = bsw_read( s, 16 );
+ p_topfield = s->p_start + bsw_pos( s ) / 8;
p_bottomfield = p_topfield + i_topfield;
- bs_skip( s, 8 * (i_segment_length - 7) );
+ bsw_skip( s, 8 * (i_segment_length - 7) );
/* Sanity check */
if( ( i_segment_length < ( i_topfield + i_bottomfield + 7 ) ) ||
else
{
/* DVB subtitling as characters */
- int i_number_of_codes = bs_read( s, 8 );
- uint8_t* p_start = s->p_start + bs_pos( s ) / 8;
+ int i_number_of_codes = bsw_read( s, 8 );
+ uint8_t* p_start = s->p_start + bsw_pos( s ) / 8;
/* Sanity check */
if( ( i_segment_length < ( i_number_of_codes*2 + 4 ) ) ||
/* FIXME 16bits -> char ??? See Preamble */
for( j = 0; j < i_number_of_codes; j++ )
{
- p_region->p_object_defs[i].psz_text[j] = (char)(bs_read( s, 16 ) & 0xFF);
+ p_region->p_object_defs[i].psz_text[j] = (char)(bsw_read( s, 16 ) & 0xFF);
}
/* Null terminate the string */
p_region->p_object_defs[i].psz_text[j] = 0;
{
uint8_t *p_pixbuf;
int i_offset = 0;
- bs_t bs;
+ bsw_t bs;
/* Sanity check */
if( !p_region->p_pixbuf )
}
p_pixbuf = p_region->p_pixbuf + i_y * p_region->i_width;
- bs_init( &bs, p_field, i_field );
+ bsw_init_writable( &bs, p_field, i_field );
- while( !bs_eof( &bs ) )
+ while( !bsw_eof( &bs ) )
{
/* Sanity check */
if( i_y >= p_region->i_height ) return;
- switch( bs_read( &bs, 8 ) )
+ switch( bsw_read( &bs, 8 ) )
{
case 0x10:
dvbsub_pdata2bpp( &bs, p_pixbuf + i_x, p_region->i_width - i_x,
}
}
-static void dvbsub_pdata2bpp( bs_t *s, uint8_t *p, int i_width, int *pi_off )
+static void dvbsub_pdata2bpp( bsw_t *s, uint8_t *p, int i_width, int *pi_off )
{
bool b_stop = false;
- while( !b_stop && !bs_eof( s ) )
+ while( !b_stop && !bsw_eof( s ) )
{
int i_count = 0, i_color = 0;
- i_color = bs_read( s, 2 );
+ i_color = bsw_read( s, 2 );
if( i_color != 0x00 )
{
i_count = 1;
}
else
{
- if( bs_read( s, 1 ) == 0x01 ) // Switch1
+ if( bsw_read( s, 1 ) == 0x01 ) // Switch1
{
- i_count = 3 + bs_read( s, 3 );
- i_color = bs_read( s, 2 );
+ i_count = 3 + bsw_read( s, 3 );
+ i_color = bsw_read( s, 2 );
}
else
{
- if( bs_read( s, 1 ) == 0x00 ) //Switch2
+ if( bsw_read( s, 1 ) == 0x00 ) //Switch2
{
- switch( bs_read( s, 2 ) ) //Switch3
+ switch( bsw_read( s, 2 ) ) //Switch3
{
case 0x00:
b_stop = true;
i_count = 2;
break;
case 0x02:
- i_count = 12 + bs_read( s, 4 );
- i_color = bs_read( s, 2 );
+ i_count = 12 + bsw_read( s, 4 );
+ i_color = bsw_read( s, 2 );
break;
case 0x03:
- i_count = 29 + bs_read( s, 8 );
- i_color = bs_read( s, 2 );
+ i_count = 29 + bsw_read( s, 8 );
+ i_color = bsw_read( s, 2 );
break;
default:
break;
(*pi_off) += i_count;
}
- bs_align( s );
+ bsw_align( s );
}
-static void dvbsub_pdata4bpp( bs_t *s, uint8_t *p, int i_width, int *pi_off )
+static void dvbsub_pdata4bpp( bsw_t *s, uint8_t *p, int i_width, int *pi_off )
{
bool b_stop = false;
- while( !b_stop && !bs_eof( s ) )
+ while( !b_stop && !bsw_eof( s ) )
{
int i_count = 0, i_color = 0;
- i_color = bs_read( s, 4 );
+ i_color = bsw_read( s, 4 );
if( i_color != 0x00 )
{
/* Add 1 pixel */
}
else
{
- if( bs_read( s, 1 ) == 0x00 ) // Switch1
+ if( bsw_read( s, 1 ) == 0x00 ) // Switch1
{
- if( bs_show( s, 3 ) != 0x00 )
+ if( bsw_show( s, 3 ) != 0x00 )
{
- i_count = 2 + bs_read( s, 3 );
+ i_count = 2 + bsw_read( s, 3 );
}
else
{
- bs_skip( s, 3 );
+ bsw_skip( s, 3 );
b_stop = true;
}
}
else
{
- if( bs_read( s, 1 ) == 0x00) //Switch2
+ if( bsw_read( s, 1 ) == 0x00) //Switch2
{
- i_count = 4 + bs_read( s, 2 );
- i_color = bs_read( s, 4 );
+ i_count = 4 + bsw_read( s, 2 );
+ i_color = bsw_read( s, 4 );
}
else
{
- switch ( bs_read( s, 2 ) ) //Switch3
+ switch ( bsw_read( s, 2 ) ) //Switch3
{
case 0x0:
i_count = 1;
i_count = 2;
break;
case 0x2:
- i_count = 9 + bs_read( s, 4 );
- i_color = bs_read( s, 4 );
+ i_count = 9 + bsw_read( s, 4 );
+ i_color = bsw_read( s, 4 );
break;
case 0x3:
- i_count= 25 + bs_read( s, 8 );
- i_color = bs_read( s, 4 );
+ i_count= 25 + bsw_read( s, 8 );
+ i_color = bsw_read( s, 4 );
break;
}
}
(*pi_off) += i_count;
}
- bs_align( s );
+ bsw_align( s );
}
-static void dvbsub_pdata8bpp( bs_t *s, uint8_t *p, int i_width, int *pi_off )
+static void dvbsub_pdata8bpp( bsw_t *s, uint8_t *p, int i_width, int *pi_off )
{
bool b_stop = false;
- while( !b_stop && !bs_eof( s ) )
+ while( !b_stop && !bsw_eof( s ) )
{
int i_count = 0, i_color = 0;
- i_color = bs_read( s, 8 );
+ i_color = bsw_read( s, 8 );
if( i_color != 0x00 )
{
/* Add 1 pixel */
}
else
{
- if( bs_read( s, 1 ) == 0x00 ) // Switch1
+ if( bsw_read( s, 1 ) == 0x00 ) // Switch1
{
- if( bs_show( s, 7 ) != 0x00 )
+ if( bsw_show( s, 7 ) != 0x00 )
{
- i_count = bs_read( s, 7 );
+ i_count = bsw_read( s, 7 );
}
else
{
- bs_skip( s, 7 );
+ bsw_skip( s, 7 );
b_stop = true;
}
}
else
{
- i_count = bs_read( s, 7 );
- i_color = bs_read( s, 8 );
+ i_count = bsw_read( s, 7 );
+ i_color = bsw_read( s, 8 );
}
}
(*pi_off) += i_count;
}
- bs_align( s );
+ bsw_align( s );
}
static void free_all( decoder_t *p_dec )
int i_offset_y;
};
-static void encode_page_composition( encoder_t *, bs_t *, subpicture_t * );
-static void encode_clut( encoder_t *, bs_t *, subpicture_t * );
-static void encode_region_composition( encoder_t *, bs_t *, subpicture_t * );
-static void encode_object( encoder_t *, bs_t *, subpicture_t * );
+static void encode_page_composition( encoder_t *, bsw_t *, subpicture_t * );
+static void encode_clut( encoder_t *, bsw_t *, subpicture_t * );
+static void encode_region_composition( encoder_t *, bsw_t *, subpicture_t * );
+static void encode_object( encoder_t *, bsw_t *, subpicture_t * );
/*****************************************************************************
* OpenEncoder: probe the encoder and return score
{
subpicture_t *p_temp = NULL;
subpicture_region_t *p_region = NULL;
- bs_t bits, *s = &bits;
+ bsw_t bits, *s = &bits;
block_t *p_block;
if( !p_subpic || !p_subpic->p_region ) return NULL;
msg_Dbg( p_enc, "encoding subpicture" );
#endif
p_block = block_New( p_enc, 64000 );
- bs_init( s, p_block->p_buffer, p_block->i_buffer );
+ bsw_init_writable( s, p_block->p_buffer, p_block->i_buffer );
- bs_write( s, 8, 0x20 ); /* Data identifier */
- bs_write( s, 8, 0x0 ); /* Subtitle stream id */
+ bsw_write( s, 8, 0x20 ); /* Data identifier */
+ bsw_write( s, 8, 0x0 ); /* Subtitle stream id */
encode_page_composition( p_enc, s, p_subpic );
encode_region_composition( p_enc, s, p_subpic );
encode_object( p_enc, s, p_subpic );
/* End of display */
- bs_write( s, 8, 0x0f ); /* Sync byte */
- bs_write( s, 8, DVBSUB_ST_ENDOFDISPLAY ); /* Segment type */
- bs_write( s, 16, 1 ); /* Page id */
- bs_write( s, 16, 0 ); /* Segment length */
+ bsw_write( s, 8, 0x0f ); /* Sync byte */
+ bsw_write( s, 8, DVBSUB_ST_ENDOFDISPLAY ); /* Segment type */
+ bsw_write( s, 16, 1 ); /* Page id */
+ bsw_write( s, 16, 0 ); /* Segment length */
- bs_write( s, 8, 0xff );/* End marker */
- p_block->i_buffer = bs_pos( s ) / 8;
+ bsw_write( s, 8, 0xff );/* End marker */
+ p_block->i_buffer = bsw_pos( s ) / 8;
p_block->i_pts = p_block->i_dts = p_subpic->i_start;
if( !p_subpic->b_ephemer && ( p_subpic->i_stop > p_subpic->i_start ) )
{
/* Send another (empty) subtitle to signal the end of display */
p_block_stop = block_New( p_enc, 64000 );
- bs_init( s, p_block_stop->p_buffer, p_block_stop->i_buffer );
- bs_write( s, 8, 0x20 ); /* Data identifier */
- bs_write( s, 8, 0x0 ); /* Subtitle stream id */
+ bsw_init_writable( s, p_block_stop->p_buffer, p_block_stop->i_buffer );
+ bsw_write( s, 8, 0x20 ); /* Data identifier */
+ bsw_write( s, 8, 0x0 ); /* Subtitle stream id */
encode_page_composition( p_enc, s, 0 );
- bs_write( s, 8, 0x0f ); /* Sync byte */
- bs_write( s, 8, DVBSUB_ST_ENDOFDISPLAY ); /* Segment type */
- bs_write( s, 16, 1 ); /* Page id */
- bs_write( s, 16, 0 ); /* Segment length */
- bs_write( s, 8, 0xff );/* End marker */
- p_block_stop->i_buffer = bs_pos( s ) / 8;
+ bsw_write( s, 8, 0x0f ); /* Sync byte */
+ bsw_write( s, 8, DVBSUB_ST_ENDOFDISPLAY ); /* Segment type */
+ bsw_write( s, 16, 1 ); /* Page id */
+ bsw_write( s, 16, 0 ); /* Segment length */
+ bsw_write( s, 8, 0xff );/* End marker */
+ p_block_stop->i_buffer = bsw_pos( s ) / 8;
p_block_stop->i_pts = p_block_stop->i_dts = p_subpic->i_stop;
block_ChainAppend( &p_block, p_block_stop );
p_block_stop->i_length = 100000; /* p_subpic->i_stop - p_subpic->i_start; */
free( p_sys );
}
-static void encode_page_composition( encoder_t *p_enc, bs_t *s,
+static void encode_page_composition( encoder_t *p_enc, bsw_t *s,
subpicture_t *p_subpic )
{
encoder_sys_t *p_sys = p_enc->p_sys;
bool b_mode_change = false;
int i_regions, i_timeout;
- bs_write( s, 8, 0x0f ); /* Sync byte */
- bs_write( s, 8, DVBSUB_ST_PAGE_COMPOSITION ); /* Segment type */
- bs_write( s, 16, 1 ); /* Page id */
+ bsw_write( s, 8, 0x0f ); /* Sync byte */
+ bsw_write( s, 8, DVBSUB_ST_PAGE_COMPOSITION ); /* Segment type */
+ bsw_write( s, 16, 1 ); /* Page id */
for( i_regions = 0, p_region = p_subpic ? p_subpic->p_region : 0;
p_region; p_region = p_region->p_next, i_regions++ )
}
}
- bs_write( s, 16, i_regions * 6 + 2 ); /* Segment length */
+ bsw_write( s, 16, i_regions * 6 + 2 ); /* Segment length */
i_timeout = 0;
if( p_subpic && !p_subpic->b_ephemer &&
i_timeout = (p_subpic->i_stop - p_subpic->i_start) / 1000000;
}
- bs_write( s, 8, i_timeout ); /* Timeout */
- bs_write( s, 4, p_sys->i_page_ver++ );
- bs_write( s, 2, b_mode_change ?
+ bsw_write( s, 8, i_timeout ); /* Timeout */
+ bsw_write( s, 4, p_sys->i_page_ver++ );
+ bsw_write( s, 2, b_mode_change ?
DVBSUB_PCS_STATE_CHANGE : DVBSUB_PCS_STATE_ACQUISITION );
- bs_write( s, 2, 0 ); /* Reserved */
+ bsw_write( s, 2, 0 ); /* Reserved */
for( i_regions = 0, p_region = p_subpic ? p_subpic->p_region : 0;
p_region; p_region = p_region->p_next, i_regions++ )
{
- bs_write( s, 8, i_regions );
- bs_write( s, 8, 0 ); /* Reserved */
+ bsw_write( s, 8, i_regions );
+ bsw_write( s, 8, 0 ); /* Reserved */
if( (p_sys->i_offset_x > 0) && (p_sys->i_offset_y > 0) )
{
- bs_write( s, 16, p_sys->i_offset_x ); /* override x position */
- bs_write( s, 16, p_sys->i_offset_y ); /* override y position */
+ bsw_write( s, 16, p_sys->i_offset_x ); /* override x position */
+ bsw_write( s, 16, p_sys->i_offset_y ); /* override y position */
}
else
{
- bs_write( s, 16, p_region->i_x );
- bs_write( s, 16, p_region->i_y );
+ bsw_write( s, 16, p_region->i_x );
+ bsw_write( s, 16, p_region->i_y );
}
}
}
-static void encode_clut( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic )
+static void encode_clut( encoder_t *p_enc, bsw_t *s, subpicture_t *p_subpic )
{
encoder_sys_t *p_sys = p_enc->p_sys;
subpicture_region_t *p_region = p_subpic->p_region;
p_pal = &pal;
}
- bs_write( s, 8, 0x0f ); /* Sync byte */
- bs_write( s, 8, DVBSUB_ST_CLUT_DEFINITION ); /* Segment type */
- bs_write( s, 16, 1 ); /* Page id */
+ bsw_write( s, 8, 0x0f ); /* Sync byte */
+ bsw_write( s, 8, DVBSUB_ST_CLUT_DEFINITION ); /* Segment type */
+ bsw_write( s, 16, 1 ); /* Page id */
- bs_write( s, 16, p_pal->i_entries * 6 + 2 ); /* Segment length */
- bs_write( s, 8, 1 ); /* Clut id */
- bs_write( s, 4, p_sys->i_clut_ver++ );
- bs_write( s, 4, 0 ); /* Reserved */
+ bsw_write( s, 16, p_pal->i_entries * 6 + 2 ); /* Segment length */
+ bsw_write( s, 8, 1 ); /* Clut id */
+ bsw_write( s, 4, p_sys->i_clut_ver++ );
+ bsw_write( s, 4, 0 ); /* Reserved */
for( i = 0; i < p_pal->i_entries; i++ )
{
- bs_write( s, 8, i ); /* Clut entry id */
- bs_write( s, 1, p_pal->i_entries == 4 ); /* 2bit/entry flag */
- bs_write( s, 1, p_pal->i_entries == 16 ); /* 4bit/entry flag */
- bs_write( s, 1, p_pal->i_entries == 256 ); /* 8bit/entry flag */
- bs_write( s, 4, 0 ); /* Reserved */
- bs_write( s, 1, 1 ); /* Full range flag */
- bs_write( s, 8, p_pal->palette[i][3] ? /* Y value */
+ bsw_write( s, 8, i ); /* Clut entry id */
+ bsw_write( s, 1, p_pal->i_entries == 4 ); /* 2bit/entry flag */
+ bsw_write( s, 1, p_pal->i_entries == 16 ); /* 4bit/entry flag */
+ bsw_write( s, 1, p_pal->i_entries == 256 ); /* 8bit/entry flag */
+ bsw_write( s, 4, 0 ); /* Reserved */
+ bsw_write( s, 1, 1 ); /* Full range flag */
+ bsw_write( s, 8, p_pal->palette[i][3] ? /* Y value */
(p_pal->palette[i][0] ? p_pal->palette[i][0] : 16) : 0 );
- bs_write( s, 8, p_pal->palette[i][1] ); /* Cr value */
- bs_write( s, 8, p_pal->palette[i][2] ); /* Cb value */
- bs_write( s, 8, 0xff - p_pal->palette[i][3] ); /* T value */
+ bsw_write( s, 8, p_pal->palette[i][1] ); /* Cr value */
+ bsw_write( s, 8, p_pal->palette[i][2] ); /* Cb value */
+ bsw_write( s, 8, 0xff - p_pal->palette[i][3] ); /* T value */
}
}
-static void encode_region_composition( encoder_t *p_enc, bs_t *s,
+static void encode_region_composition( encoder_t *p_enc, bsw_t *s,
subpicture_t *p_subpic )
{
encoder_sys_t *p_sys = p_enc->p_sys;
}
}
- bs_write( s, 8, 0x0f ); /* Sync byte */
- bs_write( s, 8, DVBSUB_ST_REGION_COMPOSITION ); /* Segment type */
- bs_write( s, 16, 1 ); /* Page id */
+ bsw_write( s, 8, 0x0f ); /* Sync byte */
+ bsw_write( s, 8, DVBSUB_ST_REGION_COMPOSITION ); /* Segment type */
+ bsw_write( s, 16, 1 ); /* Page id */
- bs_write( s, 16, 10 + 6 + (b_text ? 2 : 0) ); /* Segment length */
- bs_write( s, 8, i_region );
- bs_write( s, 4, p_sys->i_region_ver++ );
+ bsw_write( s, 16, 10 + 6 + (b_text ? 2 : 0) ); /* Segment length */
+ bsw_write( s, 8, i_region );
+ bsw_write( s, 4, p_sys->i_region_ver++ );
/* Region attributes */
- bs_write( s, 1, i_bg < i_entries ); /* Fill */
- bs_write( s, 3, 0 ); /* Reserved */
- bs_write( s, 16, p_sys->p_regions[i_region].i_width );
- bs_write( s, 16, p_sys->p_regions[i_region].i_height );
- bs_write( s, 3, i_depth ); /* Region level of compatibility */
- bs_write( s, 3, i_depth ); /* Region depth */
- bs_write( s, 2, 0 ); /* Reserved */
- bs_write( s, 8, 1 ); /* Clut id */
- bs_write( s, 8, i_bg ); /* region 8bit pixel code */
- bs_write( s, 4, i_bg ); /* region 4bit pixel code */
- bs_write( s, 2, i_bg ); /* region 2bit pixel code */
- bs_write( s, 2, 0 ); /* Reserved */
+ bsw_write( s, 1, i_bg < i_entries ); /* Fill */
+ bsw_write( s, 3, 0 ); /* Reserved */
+ bsw_write( s, 16, p_sys->p_regions[i_region].i_width );
+ bsw_write( s, 16, p_sys->p_regions[i_region].i_height );
+ bsw_write( s, 3, i_depth ); /* Region level of compatibility */
+ bsw_write( s, 3, i_depth ); /* Region depth */
+ bsw_write( s, 2, 0 ); /* Reserved */
+ bsw_write( s, 8, 1 ); /* Clut id */
+ bsw_write( s, 8, i_bg ); /* region 8bit pixel code */
+ bsw_write( s, 4, i_bg ); /* region 4bit pixel code */
+ bsw_write( s, 2, i_bg ); /* region 2bit pixel code */
+ bsw_write( s, 2, 0 ); /* Reserved */
/* In our implementation we only have 1 object per region */
- bs_write( s, 16, i_region );
- bs_write( s, 2, b_text ? DVBSUB_OT_BASIC_CHAR:DVBSUB_OT_BASIC_BITMAP );
- bs_write( s, 2, 0 ); /* object provider flag */
- bs_write( s, 12, 0 );/* object horizontal position */
- bs_write( s, 4, 0 ); /* Reserved */
- bs_write( s, 12, 0 );/* object vertical position */
+ bsw_write( s, 16, i_region );
+ bsw_write( s, 2, b_text ? DVBSUB_OT_BASIC_CHAR:DVBSUB_OT_BASIC_BITMAP );
+ bsw_write( s, 2, 0 ); /* object provider flag */
+ bsw_write( s, 12, 0 );/* object horizontal position */
+ bsw_write( s, 4, 0 ); /* Reserved */
+ bsw_write( s, 12, 0 );/* object vertical position */
if( b_text )
{
- bs_write( s, 8, 1 ); /* foreground pixel code */
- bs_write( s, 8, 0 ); /* background pixel code */
+ bsw_write( s, 8, 1 ); /* foreground pixel code */
+ bsw_write( s, 8, 0 ); /* background pixel code */
}
}
}
-static void encode_pixel_data( encoder_t *p_enc, bs_t *s,
+static void encode_pixel_data( encoder_t *p_enc, bsw_t *s,
subpicture_region_t *p_region,
bool b_top );
-static void encode_object( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic )
+static void encode_object( encoder_t *p_enc, bsw_t *s, subpicture_t *p_subpic )
{
encoder_sys_t *p_sys = p_enc->p_sys;
subpicture_region_t *p_region;
for( i_region = 0, p_region = p_subpic->p_region; p_region;
p_region = p_region->p_next, i_region++ )
{
- bs_write( s, 8, 0x0f ); /* Sync byte */
- bs_write( s, 8, DVBSUB_ST_OBJECT_DATA ); /* Segment type */
- bs_write( s, 16, 1 ); /* Page id */
+ bsw_write( s, 8, 0x0f ); /* Sync byte */
+ bsw_write( s, 8, DVBSUB_ST_OBJECT_DATA ); /* Segment type */
+ bsw_write( s, 16, 1 ); /* Page id */
- i_length_pos = bs_pos( s );
- bs_write( s, 16, 0 ); /* Segment length */
- bs_write( s, 16, i_region ); /* Object id */
- bs_write( s, 4, p_sys->i_region_ver++ );
+ i_length_pos = bsw_pos( s );
+ bsw_write( s, 16, 0 ); /* Segment length */
+ bsw_write( s, 16, i_region ); /* Object id */
+ bsw_write( s, 4, p_sys->i_region_ver++ );
/* object coding method */
switch( p_region->fmt.i_chroma )
{
case VLC_CODEC_YUVP:
- bs_write( s, 2, 0 );
+ bsw_write( s, 2, 0 );
break;
case VLC_CODEC_TEXT:
- bs_write( s, 2, 1 );
+ bsw_write( s, 2, 1 );
break;
default:
msg_Err( p_enc, "FOURCC %d not supported by encoder.", p_region->fmt.i_chroma );
continue;
}
- bs_write( s, 1, 0 ); /* non modifying color flag */
- bs_write( s, 1, 0 ); /* Reserved */
+ bsw_write( s, 1, 0 ); /* non modifying color flag */
+ bsw_write( s, 1, 0 ); /* Reserved */
if( p_region->fmt.i_chroma == VLC_CODEC_TEXT )
{
i_size = __MIN( strlen( p_region->psz_text ), 256 );
- bs_write( s, 8, i_size ); /* number of characters in string */
+ bsw_write( s, 8, i_size ); /* number of characters in string */
for( i = 0; i < i_size; i++ )
{
- bs_write( s, 16, p_region->psz_text[i] );
+ bsw_write( s, 16, p_region->psz_text[i] );
}
/* Update segment length */
SetWBE( &s->p_start[i_length_pos/8],
- (bs_pos(s) - i_length_pos)/8 -2 );
+ (bsw_pos(s) - i_length_pos)/8 -2 );
continue;
}
/* Coding of a bitmap object */
- i_update_pos = bs_pos( s );
- bs_write( s, 16, 0 ); /* topfield data block length */
- bs_write( s, 16, 0 ); /* bottomfield data block length */
+ i_update_pos = bsw_pos( s );
+ bsw_write( s, 16, 0 ); /* topfield data block length */
+ bsw_write( s, 16, 0 ); /* bottomfield data block length */
/* Top field */
- i_pixel_data_pos = bs_pos( s );
+ i_pixel_data_pos = bsw_pos( s );
encode_pixel_data( p_enc, s, p_region, true );
- i_pixel_data_pos = ( bs_pos( s ) - i_pixel_data_pos ) / 8;
+ i_pixel_data_pos = ( bsw_pos( s ) - i_pixel_data_pos ) / 8;
SetWBE( &s->p_start[i_update_pos/8], i_pixel_data_pos );
/* Bottom field */
- i_pixel_data_pos = bs_pos( s );
+ i_pixel_data_pos = bsw_pos( s );
encode_pixel_data( p_enc, s, p_region, false );
- i_pixel_data_pos = ( bs_pos( s ) - i_pixel_data_pos ) / 8;
+ i_pixel_data_pos = ( bsw_pos( s ) - i_pixel_data_pos ) / 8;
SetWBE( &s->p_start[i_update_pos/8+2], i_pixel_data_pos );
/* Stuffing for word alignment */
- bs_align_0( s );
- if( bs_pos( s ) % 16 ) bs_write( s, 8, 0 );
+ bsw_align_0( s );
+ if( bsw_pos( s ) % 16 ) bsw_write( s, 8, 0 );
/* Update segment length */
- SetWBE( &s->p_start[i_length_pos/8], (bs_pos(s) - i_length_pos)/8 -2 );
+ SetWBE( &s->p_start[i_length_pos/8], (bsw_pos(s) - i_length_pos)/8 -2 );
}
}
-static void encode_pixel_line_2bp( bs_t *s, subpicture_region_t *p_region,
+static void encode_pixel_line_2bp( bsw_t *s, subpicture_region_t *p_region,
int i_line );
-static void encode_pixel_line_4bp( bs_t *s, subpicture_region_t *p_region,
+static void encode_pixel_line_4bp( bsw_t *s, subpicture_region_t *p_region,
int i_line );
-static void encode_pixel_line_8bp( bs_t *s, subpicture_region_t *p_region,
+static void encode_pixel_line_8bp( bsw_t *s, subpicture_region_t *p_region,
int i_line );
-static void encode_pixel_data( encoder_t *p_enc, bs_t *s,
+static void encode_pixel_data( encoder_t *p_enc, bsw_t *s,
subpicture_region_t *p_region,
bool b_top )
{
break;
case 4:
- bs_write( s, 8, 0x10 ); /* 2 bit/pixel code string */
+ bsw_write( s, 8, 0x10 ); /* 2 bit/pixel code string */
encode_pixel_line_2bp( s, p_region, i_line );
break;
case 16:
- bs_write( s, 8, 0x11 ); /* 4 bit/pixel code string */
+ bsw_write( s, 8, 0x11 ); /* 4 bit/pixel code string */
encode_pixel_line_4bp( s, p_region, i_line );
break;
case 256:
- bs_write( s, 8, 0x12 ); /* 8 bit/pixel code string */
+ bsw_write( s, 8, 0x12 ); /* 8 bit/pixel code string */
encode_pixel_line_8bp( s, p_region, i_line );
break;
break;
}
- bs_write( s, 8, 0xf0 ); /* End of object line code */
+ bsw_write( s, 8, 0xf0 ); /* End of object line code */
}
}
-static void encode_pixel_line_2bp( bs_t *s, subpicture_region_t *p_region,
+static void encode_pixel_line_2bp( bsw_t *s, subpicture_region_t *p_region,
int i_line )
{
unsigned int i, i_length = 0;
{
/* 2bit/pixel code */
if( i_last_pixel )
- bs_write( s, 2, i_last_pixel );
+ bsw_write( s, 2, i_last_pixel );
else
{
- bs_write( s, 2, 0 );
- bs_write( s, 1, 0 );
- bs_write( s, 1, 1 ); /* pseudo color 0 */
+ bsw_write( s, 2, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 1, 1 ); /* pseudo color 0 */
}
i_length--;
}
{
if( i_last_pixel )
{
- bs_write( s, 2, i_last_pixel );
- bs_write( s, 2, i_last_pixel );
+ bsw_write( s, 2, i_last_pixel );
+ bsw_write( s, 2, i_last_pixel );
}
else
{
- bs_write( s, 2, 0 );
- bs_write( s, 1, 0 );
- bs_write( s, 1, 0 );
- bs_write( s, 2, 1 ); /* 2 * pseudo color 0 */
+ bsw_write( s, 2, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 2, 1 ); /* 2 * pseudo color 0 */
}
}
else if( i_length > 2 )
{
- bs_write( s, 2, 0 );
+ bsw_write( s, 2, 0 );
if( i_length <= 10 )
{
- bs_write( s, 1, 1 );
- bs_write( s, 3, i_length - 3 );
- bs_write( s, 2, i_last_pixel );
+ bsw_write( s, 1, 1 );
+ bsw_write( s, 3, i_length - 3 );
+ bsw_write( s, 2, i_last_pixel );
}
else
{
- bs_write( s, 1, 0 );
- bs_write( s, 1, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 1, 0 );
if( i_length <= 27 )
{
- bs_write( s, 2, 2 );
- bs_write( s, 4, i_length - 12 );
- bs_write( s, 2, i_last_pixel );
+ bsw_write( s, 2, 2 );
+ bsw_write( s, 4, i_length - 12 );
+ bsw_write( s, 2, i_last_pixel );
}
else
{
- bs_write( s, 2, 3 );
- bs_write( s, 8, i_length - 29 );
- bs_write( s, 2, i_last_pixel );
+ bsw_write( s, 2, 3 );
+ bsw_write( s, 8, i_length - 29 );
+ bsw_write( s, 2, i_last_pixel );
}
}
}
}
/* Stop */
- bs_write( s, 2, 0 );
- bs_write( s, 1, 0 );
- bs_write( s, 1, 0 );
- bs_write( s, 2, 0 );
+ bsw_write( s, 2, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 2, 0 );
/* Stuffing */
- bs_align_0( s );
+ bsw_align_0( s );
}
-static void encode_pixel_line_4bp( bs_t *s, subpicture_region_t *p_region,
+static void encode_pixel_line_4bp( bsw_t *s, subpicture_region_t *p_region,
int i_line )
{
unsigned int i, i_length = 0;
{
/* 4bit/pixel code */
if( i_last_pixel )
- bs_write( s, 4, i_last_pixel );
+ bsw_write( s, 4, i_last_pixel );
else
{
- bs_write( s, 4, 0 );
- bs_write( s, 1, 1 );
- bs_write( s, 1, 1 );
- bs_write( s, 2, 0 ); /* pseudo color 0 */
+ bsw_write( s, 4, 0 );
+ bsw_write( s, 1, 1 );
+ bsw_write( s, 1, 1 );
+ bsw_write( s, 2, 0 ); /* pseudo color 0 */
}
i_length--;
}
{
if( i_last_pixel )
{
- bs_write( s, 4, i_last_pixel );
- bs_write( s, 4, i_last_pixel );
+ bsw_write( s, 4, i_last_pixel );
+ bsw_write( s, 4, i_last_pixel );
}
else
{
- bs_write( s, 4, 0 );
- bs_write( s, 1, 1 );
- bs_write( s, 1, 1 );
- bs_write( s, 2, 1 ); /* 2 * pseudo color 0 */
+ bsw_write( s, 4, 0 );
+ bsw_write( s, 1, 1 );
+ bsw_write( s, 1, 1 );
+ bsw_write( s, 2, 1 ); /* 2 * pseudo color 0 */
}
}
else if( !i_last_pixel && ( i_length >= 3 ) && ( i_length <= 9 ) )
{
- bs_write( s, 4, 0 );
- bs_write( s, 1, 0 );
- bs_write( s, 3, i_length - 2 ); /* (i_length - 2) * color 0 */
+ bsw_write( s, 4, 0 );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 3, i_length - 2 ); /* (i_length - 2) * color 0 */
}
else if( i_length > 2 )
{
- bs_write( s, 4, 0 );
- bs_write( s, 1, 1 );
+ bsw_write( s, 4, 0 );
+ bsw_write( s, 1, 1 );
if( i_length <= 7 )
{
- bs_write( s, 1, 0 );
- bs_write( s, 2, i_length - 4 );
- bs_write( s, 4, i_last_pixel );
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 2, i_length - 4 );
+ bsw_write( s, 4, i_last_pixel );
}
else
{
- bs_write( s, 1, 1 );
+ bsw_write( s, 1, 1 );
if( i_length <= 24 )
{
- bs_write( s, 2, 2 );
- bs_write( s, 4, i_length - 9 );
- bs_write( s, 4, i_last_pixel );
+ bsw_write( s, 2, 2 );
+ bsw_write( s, 4, i_length - 9 );
+ bsw_write( s, 4, i_last_pixel );
}
else
{
- bs_write( s, 2, 3 );
- bs_write( s, 8, i_length - 25 );
- bs_write( s, 4, i_last_pixel );
+ bsw_write( s, 2, 3 );
+ bsw_write( s, 8, i_length - 25 );
+ bsw_write( s, 4, i_last_pixel );
}
}
}
}
/* Stop */
- bs_write( s, 8, 0 );
+ bsw_write( s, 8, 0 );
/* Stuffing */
- bs_align_0( s );
+ bsw_align_0( s );
}
-static void encode_pixel_line_8bp( bs_t *s, subpicture_region_t *p_region,
+static void encode_pixel_line_8bp( bsw_t *s, subpicture_region_t *p_region,
int i_line )
{
unsigned int i, i_length = 0;
if( ( i_length == 1 ) && i_last_pixel )
{
/* 8bit/pixel code */
- bs_write( s, 8, i_last_pixel );
+ bsw_write( s, 8, i_last_pixel );
}
else if( ( i_length == 2 ) && i_last_pixel )
{
/* 8bit/pixel code */
- bs_write( s, 8, i_last_pixel );
- bs_write( s, 8, i_last_pixel );
+ bsw_write( s, 8, i_last_pixel );
+ bsw_write( s, 8, i_last_pixel );
}
else if( i_length <= 127 )
{
- bs_write( s, 8, 0 );
+ bsw_write( s, 8, 0 );
if( !i_last_pixel )
{
- bs_write( s, 1, 0 );
- bs_write( s, 7, i_length ); /* pseudo color 0 */
+ bsw_write( s, 1, 0 );
+ bsw_write( s, 7, i_length ); /* pseudo color 0 */
}
else
{
- bs_write( s, 1, 1 );
- bs_write( s, 7, i_length );
- bs_write( s, 8, i_last_pixel );
+ bsw_write( s, 1, 1 );
+ bsw_write( s, 7, i_length );
+ bsw_write( s, 8, i_last_pixel );
}
}
}
/* Stop */
- bs_write( s, 8, 0 );
- bs_write( s, 8, 0 );
+ bsw_write( s, 8, 0 );
+ bsw_write( s, 8, 0 );
/* Stuffing */
- bs_align_0( s );
+ bsw_align_0( s );
}
return ( ( p_header[1] & 0x1f ) << 8 ) + p_header[2];
}
-static int Mpeg4GAProgramConfigElement( bs_t *s )
+static int Mpeg4GAProgramConfigElement( bsw_t *s )
{
/* TODO compute channels count ? */
- int i_tag = bs_read( s, 4 );
+ int i_tag = bsw_read( s, 4 );
if( i_tag != 0x05 )
return -1;
- bs_skip( s, 2 + 4 ); // object type + sampling index
- int i_num_front = bs_read( s, 4 );
- int i_num_side = bs_read( s, 4 );
- int i_num_back = bs_read( s, 4 );
- int i_num_lfe = bs_read( s, 2 );
- int i_num_assoc_data = bs_read( s, 3 );
- int i_num_valid_cc = bs_read( s, 4 );
-
- if( bs_read1(s) )
- bs_skip( s, 4 ); // mono downmix
- if( bs_read1(s) )
- bs_skip( s, 4 ); // stereo downmix
- if( bs_read1(s) )
- bs_skip( s, 2+1 ); // matrix downmix + pseudo_surround
-
- bs_skip( s, i_num_front * (1+4) );
- bs_skip( s, i_num_side * (1+4) );
- bs_skip( s, i_num_back * (1+4) );
- bs_skip( s, i_num_lfe * (4) );
- bs_skip( s, i_num_assoc_data * (4) );
- bs_skip( s, i_num_valid_cc * (5) );
- bs_align( s );
- int i_comment = bs_read( s, 8 );
- bs_skip( s, i_comment * 8 );
+ bsw_skip( s, 2 + 4 ); // object type + sampling index
+ int i_num_front = bsw_read( s, 4 );
+ int i_num_side = bsw_read( s, 4 );
+ int i_num_back = bsw_read( s, 4 );
+ int i_num_lfe = bsw_read( s, 2 );
+ int i_num_assoc_data = bsw_read( s, 3 );
+ int i_num_valid_cc = bsw_read( s, 4 );
+
+ if( bsw_read1(s) )
+ bsw_skip( s, 4 ); // mono downmix
+ if( bsw_read1(s) )
+ bsw_skip( s, 4 ); // stereo downmix
+ if( bsw_read1(s) )
+ bsw_skip( s, 2+1 ); // matrix downmix + pseudo_surround
+
+ bsw_skip( s, i_num_front * (1+4) );
+ bsw_skip( s, i_num_side * (1+4) );
+ bsw_skip( s, i_num_back * (1+4) );
+ bsw_skip( s, i_num_lfe * (4) );
+ bsw_skip( s, i_num_assoc_data * (4) );
+ bsw_skip( s, i_num_valid_cc * (5) );
+ bsw_align( s );
+ int i_comment = bsw_read( s, 8 );
+ bsw_skip( s, i_comment * 8 );
return 0;
}
-static int Mpeg4GASpecificConfig( mpeg4_cfg_t *p_cfg, bs_t *s )
+static int Mpeg4GASpecificConfig( mpeg4_cfg_t *p_cfg, bsw_t *s )
{
- p_cfg->i_frame_length = bs_read1(s) ? 960 : 1024;
+ p_cfg->i_frame_length = bsw_read1(s) ? 960 : 1024;
- if( bs_read1( s ) ) // depend on core coder
- bs_skip( s, 14 ); // core coder delay
+ if( bsw_read1( s ) ) // depend on core coder
+ bsw_skip( s, 14 ); // core coder delay
- int i_extension_flag = bs_read1( s );
+ int i_extension_flag = bsw_read1( s );
if( p_cfg->i_channel == 0 )
{
Mpeg4GAProgramConfigElement( s );
}
if( p_cfg->i_object_type == 6 || p_cfg->i_object_type == 20 )
- bs_skip( s, 3 ); // layer
+ bsw_skip( s, 3 ); // layer
if( i_extension_flag )
{
if( p_cfg->i_object_type == 22 )
{
- bs_skip( s, 5 + 11 ); // numOfSubFrame + layer length
+ bsw_skip( s, 5 + 11 ); // numOfSubFrame + layer length
}
if( p_cfg->i_object_type == 17 || p_cfg->i_object_type == 19 ||
p_cfg->i_object_type == 20 || p_cfg->i_object_type == 23 )
{
- bs_skip( s, 1+1+1 ); // ER data : section scale spectral */
+ bsw_skip( s, 1+1+1 ); // ER data : section scale spectral */
}
- if( bs_read1( s ) ) // extension 3
+ if( bsw_read1( s ) ) // extension 3
fprintf( stderr, "Mpeg4GASpecificConfig: error 1\n" );
}
return 0;
}
-static int Mpeg4ReadAudioObjectType( bs_t *s )
+static int Mpeg4ReadAudioObjectType( bsw_t *s )
{
- int i_type = bs_read( s, 5 );
+ int i_type = bsw_read( s, 5 );
if( i_type == 31 )
- i_type = 32 + bs_read( s, 6 );
+ i_type = 32 + bsw_read( s, 6 );
return i_type;
}
-static int Mpeg4ReadAudioSamplerate( bs_t *s )
+static int Mpeg4ReadAudioSamplerate( bsw_t *s )
{
- int i_index = bs_read( s, 4 );
+ int i_index = bsw_read( s, 4 );
if( i_index != 0x0f )
return pi_sample_rates[i_index];
- return bs_read( s, 24 );
+ return bsw_read( s, 24 );
}
-static int Mpeg4ReadAudioSpecificInfo( mpeg4_cfg_t *p_cfg, int *pi_extra, uint8_t *p_extra, bs_t *s, int i_max_size )
+static int Mpeg4ReadAudioSpecificInfo( mpeg4_cfg_t *p_cfg, int *pi_extra, uint8_t *p_extra, bsw_t *s, int i_max_size )
{
#if 0
static const char *ppsz_otype[] = {
"DST",
};
#endif
- const int i_pos_start = bs_pos( s );
- bs_t s_sav = *s;
+ const int i_pos_start = bsw_pos( s );
+ bsw_t s_sav = *s;
int i_bits;
int i;
p_cfg->i_object_type = Mpeg4ReadAudioObjectType( s );
p_cfg->i_samplerate = Mpeg4ReadAudioSamplerate( s );
- p_cfg->i_channel = bs_read( s, 4 );
+ p_cfg->i_channel = bsw_read( s, 4 );
if( p_cfg->i_channel == 7 )
p_cfg->i_channel = 8; // 7.1
else if( p_cfg->i_channel >= 8 )
case 17: case 19: case 20: case 21: case 22: case 23:
case 24: case 25: case 26: case 27:
{
- int epConfig = bs_read( s, 2 );
+ int epConfig = bsw_read( s, 2 );
if( epConfig == 2 || epConfig == 3 )
{
//ErrorProtectionSpecificConfig();
}
if( epConfig == 3 )
{
- int directMapping = bs_read1( s );
+ int directMapping = bsw_read1( s );
if( directMapping )
{
// tbd ...
break;
}
- if( p_cfg->extension.i_object_type != 5 && i_max_size > 0 && i_max_size - (bs_pos(s) - i_pos_start) >= 16 &&
- bs_read( s, 11 ) == 0x2b7 )
+ if( p_cfg->extension.i_object_type != 5 && i_max_size > 0 && i_max_size - (bsw_pos(s) - i_pos_start) >= 16 &&
+ bsw_read( s, 11 ) == 0x2b7 )
{
p_cfg->extension.i_object_type = Mpeg4ReadAudioObjectType( s );
if( p_cfg->extension.i_object_type == 5 )
{
- p_cfg->i_sbr = bs_read1( s );
+ p_cfg->i_sbr = bsw_read1( s );
if( p_cfg->i_sbr == 1 )
{
p_cfg->extension.i_samplerate = Mpeg4ReadAudioSamplerate( s );
- if( i_max_size > 0 && i_max_size - (bs_pos(s) - i_pos_start) >= 12 && bs_read( s, 11 ) == 0x548 )
+ if( i_max_size > 0 && i_max_size - (bsw_pos(s) - i_pos_start) >= 12 && bsw_read( s, 11 ) == 0x548 )
{
- p_cfg->i_ps = bs_read1( s );
+ p_cfg->i_ps = bsw_read1( s );
}
}
}
//fprintf( stderr, "Mpeg4ReadAudioSpecificInfo: t=%s(%d)f=%d c=%d sbr=%d\n",
// ppsz_otype[p_cfg->i_object_type], p_cfg->i_object_type, p_cfg->i_samplerate, p_cfg->i_channel, p_cfg->i_sbr );
- i_bits = bs_pos(s) - i_pos_start;
+ i_bits = bsw_pos(s) - i_pos_start;
*pi_extra = __MIN( ( i_bits + 7 ) / 8, LATM_MAX_EXTRA_SIZE );
for( i = 0; i < *pi_extra; i++ )
{
const int i_read = __MIN( 8, i_bits - 8*i );
- p_extra[i] = bs_read( &s_sav, i_read ) << (8-i_read);
+ p_extra[i] = bsw_read( &s_sav, i_read ) << (8-i_read);
}
return i_bits;
}
-static int LatmGetValue( bs_t *s )
+static int LatmGetValue( bsw_t *s )
{
- int i_bytes = bs_read( s, 2 );
+ int i_bytes = bsw_read( s, 2 );
int v = 0;
int i;
for( i = 0; i < i_bytes; i++ )
- v = (v << 8) + bs_read( s, 8 );
+ v = (v << 8) + bsw_read( s, 8 );
return v;
}
-static int LatmReadStreamMuxConfiguration( latm_mux_t *m, bs_t *s )
+static int LatmReadStreamMuxConfiguration( latm_mux_t *m, bsw_t *s )
{
int i_mux_version;
int i_mux_versionA;
int i_program;
- i_mux_version = bs_read( s, 1 );
+ i_mux_version = bsw_read( s, 1 );
i_mux_versionA = 0;
if( i_mux_version )
- i_mux_versionA = bs_read( s, 1 );
+ i_mux_versionA = bsw_read( s, 1 );
if( i_mux_versionA != 0 ) /* support only A=0 */
return -1;
}
}
- m->b_same_time_framing = bs_read1( s );
- m->i_sub_frames = 1 + bs_read( s, 6 );
- m->i_programs = 1 + bs_read( s, 4 );
+ m->b_same_time_framing = bsw_read1( s );
+ m->i_sub_frames = 1 + bsw_read( s, 6 );
+ m->i_programs = 1 + bsw_read( s, 4 );
for( i_program = 0; i_program < m->i_programs; i_program++ )
{
int i_layer;
- m->pi_layers[i_program] = 1+bs_read( s, 3 );
+ m->pi_layers[i_program] = 1+bsw_read( s, 3 );
for( i_layer = 0; i_layer < m->pi_layers[i_program]; i_layer++ )
{
b_previous_cfg = false;
if( i_program != 0 || i_layer != 0 )
- b_previous_cfg = bs_read1( s );
+ b_previous_cfg = bsw_read1( s );
if( b_previous_cfg )
{
i_cfg_size = LatmGetValue(s);
i_cfg_size -= Mpeg4ReadAudioSpecificInfo( &st->cfg, &st->i_extra, st->extra, s, i_cfg_size );
if( i_cfg_size > 0 )
- bs_skip( s, i_cfg_size );
+ bsw_skip( s, i_cfg_size );
}
- st->i_frame_length_type = bs_read( s, 3 );
+ st->i_frame_length_type = bsw_read( s, 3 );
switch( st->i_frame_length_type )
{
case 0:
{
- bs_skip( s, 8 ); /* latmBufferFullnes */
+ bsw_skip( s, 8 ); /* latmBufferFullnes */
if( !m->b_same_time_framing )
{
if( st->cfg.i_object_type == 6 || st->cfg.i_object_type == 20 ||
st->cfg.i_object_type == 8 || st->cfg.i_object_type == 24 )
{
- bs_skip( s, 6 ); /* eFrameOffset */
+ bsw_skip( s, 6 ); /* eFrameOffset */
}
}
break;
}
case 1:
- st->i_frame_length = bs_read( s, 9 );
+ st->i_frame_length = bsw_read( s, 9 );
break;
case 3: case 4: case 5:
- st->i_frame_length_index = bs_read( s, 6 ); // celp
+ st->i_frame_length_index = bsw_read( s, 6 ); // celp
break;
case 6: case 7:
- st->i_frame_length_index = bs_read( s, 1 ); // hvxc
+ st->i_frame_length_index = bsw_read( s, 1 ); // hvxc
default:
break;
}
}
/* other data */
- if( bs_read1( s ) )
+ if( bsw_read1( s ) )
{
if( i_mux_version == 1 )
{
{
int b_continue;
do {
- b_continue = bs_read1(s);
- m->i_other_data = (m->i_other_data << 8) + bs_read( s, 8 );
+ b_continue = bsw_read1(s);
+ m->i_other_data = (m->i_other_data << 8) + bsw_read( s, 8 );
} while( b_continue );
}
}
/* crc */
m->i_crc = -1;
- if( bs_read1( s ) )
- m->i_crc = bs_read( s, 8 );
+ if( bsw_read1( s ) )
+ m->i_crc = bsw_read( s, 8 );
return 0;
}
static int LOASParse( decoder_t *p_dec, uint8_t *p_buffer, int i_buffer )
{
decoder_sys_t *p_sys = p_dec->p_sys;
- bs_t s;
+ bsw_t s;
int i_sub;
int i_accumulated = 0;
- bs_init( &s, p_buffer, i_buffer );
+ bsw_init_writable( &s, p_buffer, i_buffer );
/* Read the stream mux configuration if present */
- if( !bs_read1( &s ) )
+ if( !bsw_read1( &s ) )
{
if( !LatmReadStreamMuxConfiguration( &p_sys->latm, &s ) &&
p_sys->latm.i_streams > 0 )
int i_payload = 0;
for( ;; )
{
- int i_tmp = bs_read( &s, 8 );
+ int i_tmp = bsw_read( &s, 8 );
i_payload += i_tmp;
if( i_tmp != 255 )
break;
( st->i_frame_length_type == 5 ) ||
( st->i_frame_length_type == 7 ) )
{
- bs_skip( &s, 2 ); // muxSlotLengthCoded
+ bsw_skip( &s, 2 ); // muxSlotLengthCoded
pi_payload[i_program][i_layer] = 0; /* TODO */
}
else
/* FIXME that's slow (and a bit ugly to write in place) */
for( i = 0; i < pi_payload[i_program][i_layer]; i++ )
- p_buffer[i_accumulated++] = bs_read( &s, 8 );
+ p_buffer[i_accumulated++] = bsw_read( &s, 8 );
}
}
}
else
{
- const int i_chunks = bs_read( &s, 4 );
+ const int i_chunks = bsw_read( &s, 4 );
int pi_program[16];
int pi_layer[16];
int i_chunk;
for( i_chunk = 0; i_chunk < i_chunks; i_chunk++ )
{
- const int streamIndex = bs_read( &s, 4 );
+ const int streamIndex = bsw_read( &s, 4 );
latm_stream_t *st = &p_sys->latm.stream[streamIndex];
const int i_program = st->i_program;
const int i_layer = st->i_layer;
int i_payload = 0;
for( ;; )
{
- int i_tmp = bs_read( &s, 8 );
+ int i_tmp = bsw_read( &s, 8 );
i_payload += i_tmp;
if( i_tmp != 255 )
break;
}
pi_payload[i_program][i_layer] = i_payload;
- bs_skip( &s, 1 ); // auEndFlag
+ bsw_skip( &s, 1 ); // auEndFlag
}
else if( st->i_frame_length_type == 1 )
{
( st->i_frame_length_type == 5 ) ||
( st->i_frame_length_type == 7 ) )
{
- bs_read( &s, 2 ); // muxSlotLengthCoded
+ bsw_read( &s, 2 ); // muxSlotLengthCoded
}
else
{
{
/* Other data XXX we just ignore them */
}
- bs_align( &s );
+ bsw_align( &s );
return i_accumulated;
}
projects / vlc / commitdiff